Wednesday, May 30, 2018

Lynis is a lightweight and easy open source auditing tool to evaluate current system security.
The official webpage can be found here.
I tested the version 263 and now the Fedora development team test the 264 version.
This tool will show you a detailed report of each and every aspect of system :

Boot and services

Kernel

Memory and processes

Users, groups, and authentication

File systems

Home directories

File permissions

Software: Malware

Security frameworks

Logging and files

SSH support

# dnf install lynis
# lynis audit system >> lynix_out.txt

The result is a text file ( 27 Kb sized for my system ) with all infos about your current system security.

Saturday, May 26, 2018

Fedora Packages have a different installation and development process thanks to testing and development teams.Note: The common user may have networking problems and these will still lead to further errors.
A common error that should be more documented and constrained is:Error: Failed to synchronize cache for repo 'updates'.

If you did not have intruders in the computer or provider changes to modify this process, then here are some elements that help you understand how it works.
The process of cleanup of temporary files kept for repositories and update / upgrade is still a testing and development process.
This includes any such data left behind from disabled or removed repositories as well as for different distribution release versions.

dnf clean dbcache : this removes cache files generated from the repository metadata and forces DNF to regenerate the cache files the next time it is run.

dnf clean expire-cache : this marks the repository metadata expired and will re-validate the cache for each repo the next time it is used.

dnf clean metadata : just removes repository metadata files which is uses to determine the remote availability of packages and will
make to download all the metadata the next time it is run.

dnf clean packages : removes any cached packages from the system.

dnf clean all : does all of the above.

You can mix these commands so you can get the desired effect with the shell tool dnf , see this example:

dnf update --refresh

This will make a update but with this feature:
--refresh will set metadata as expired before running the command.

Friday, May 25, 2018

The fedora 28 distribution is an advanced Linux distribution that includes tools and is supported by the fedora community.
The clear and essential reason for the right development is the learning area.
Here's a great video tutorial about developing fedora packets and that's very useful.

Friday, May 11, 2018

LibreCAD - originally CADuntu is a free Open Source CAD application and today I tested with my Fedora 28.
The content for this application is available under Creative Commons Attribution Share Alike.
LibreCAD is a free and open-source and can be downloaded from official webpage.
Let's see the install process of this tool:

The application works great I don't know from where come the errors.
You can used to test your skills into the area of
The official manual can be found here.
This is a screenshot from my Fedora 28 distro:

The spine is a 2D skeletal animation tool for your video games.
This tool comes with features to building great looking animations.
Spine exports animation data in its own, documented JSON and binary formats.
You can export animated GIFs, PNG or JPEG image sequences and AVI or QuickTime video.
I install the trial version into my Fedora 28 distro easy.
First, you need to download it and unarchive from the official website.
The next step will start with this command: